Table 2.

Thin film spin-coating conditions, their root mean square (RMS) surface roughness, and FET mobilities.

Entry	PAH	Solv.	Conc. [10−4 m]	Spin speed [rpm]	RMS roughness [nm]	Mobility [cm2 V−1 s−1]
1	1 a	toluene	4.5	2500	19.7	n.a.
2	1 a	toluene	4.5	4000	18.4	n.a.
3	1 b	toluene	4.5	4000	1.9	8.3×10−9
4	1 a	toluene	4.5	5000	21.4	n.a.
5	1 a	toluene	2.0	4000	14.5	n.a.
6	1 b	toluene	2.0	4000	1.2	3.4×10−8
7	1 a	toluene	0.5	4000	13.2	n.a.
8	1 a	DCB	2.0	4000	22.7	n.a.
9	1 b	DCB	2.0	4000	2.3	7.9×10−9

n.a.: not applicable